Midterm Review
Part I – Definitions
Name ________________________________
Date _______________ Period ___________
Metric Unit
Directions: Complete the following chart.
Measurement
Mass
Unit
Abbreviation for unit
Measurement Device
Volume
Length
Temperature
Directions: Determine the equation and unit for the following items.
1. Area =
2. Volume =
3. Density =
4. Percent =
Matter Unit
Define the following terms related to matter.
1. Physical Change –
2. Chemical Change –
3. Evaporation –
4. Melting –
5. Sublimation –
6. Element –
1
7. Compound 8. Homogenous Mixture –
9. Heterogeneous Mixture –
Directions: Complete the following tables.
State
Shape
(Definite or Indefinite)
Volume
(Definite or Indefinite)
Solid
Liquid
Gas
Separation
Technique
Definition
Type of Mixture
to Separate
Example
Distillation
Crystallization
Evaporation
Chromatography
Magnetic
Method
Filtration
Solutions Unit
Directions: Define the following terms related to solutions.
a. Solute
b. Solvent
c. Dilute
2
d. Concentrated
e. Miscible
f. Immiscible
Directions: Complete the following problems.
a. What is the concentration of a solution with 10 g of salt dissolved in 40 g of water?
b. What is the concentration of a solution with 10 g of salt dissolved in 40 g of solution?
c. Explain in your own words how you would complete a 1-to-5 dilution of food coloring.
Water Unit
1. Define the following terms related to water treatment and wastewater treatment.
a. Water Treatment Plant
b. Wastewater Treatment Plant
c. Aquifer
d. Aquitard
e. Point Source
f. Area Source
g. Primary Treatment
h. Secondary Treatment
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Directions: Complete the following table
Additive
Water Treatment or
Wastewater Treatment (both?)
Purpose
Chlorine
Fluorine
Alum
Microorganisms
Directions: Label the following diagram
Word Bank
Evaporation
Precipitation
Ground water
Transpiration
Runoff
Condensation
Surface water
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Midterm Review – Part II
Practice Problems
Metric Unit
1)
2)
Complete the following metric conversions.
a. 2.6 kg =
________________ g
d. 0.45 daL = ________________ hL
b. 5.0 g =
________________ mg
e. 0.009 km = ________________ dm
c. 32 mL =
________________ L
f. 1.04 m =
________________ cm
Complete the following problems. Show all work and include units.
a. Calculate the density of a substance with a mass of 2.5 g and a volume of 15 mL.
b. My closet has 3 pairs of black shoes out of a total of 20 pairs of shoes. What is the
percentage of black shoes in my closet?
Matter Unit
3)
4)
Classify each of the following as a physical (P) or chemical (C) change.
a. Cutting Magnesium
__________
b. Lead nitrate plus potassium iodide forms a yellow solid
__________
c. Melting lauric acid
__________
d. Grinding CuSO4 ∙ 5H2O
__________
e. Magnesium plus hydrochloric acid produces
heat plus many bubbles.
__________
Answer the following questions regarding 2Mg3(PO4)2
a. Element or Compound
________________
b. Formula or Symbol
_______________
e. Number of P atoms
________________
f. Number of O atom
________________
g. Total number of atoms
________________
c. What is the coefficient? ________________
d. Number of Mg atoms
________________
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Solutions Unit
5)
Complete the following concentration problems.
a. What is the concentration of a solution with 20 g of sugar dissolved in 80 g of solution?
b. What is the concentration of a solution with 20 g of sugar dissolved in 80 g of water?
c. Salt is dissolved in water. Salt would be called the ___________ and water is called the
_______________.
Water Unit
6)
Describe the process in which rain water seeps into the ground. Use the following words in
your discussion: pores, seepage, aquifer, aquitard.
7)
Complete the following chart:
Material
Pore size (small, medium, large)
Aquifer or Aquitard
Sand
Gravel
Clay
8)
A gas station has a leak in an underground tank. The soil around the tank becomes
contaminated. Is this an example of an area source or point source of pollution? Explain your
answer.
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